Privacy Policy — Hakkutsu (発掘)

1. Overview

Hakkutsu ("we", "our", or "the extension") is a local-first Japanese language immersion extension for Chrome. We are committed to absolute user privacy. Hakkutsu operates 100% locally on your computer with zero external data collection, remote servers, or tracking.

2. Zero Data Collection & Tracking

Hakkutsu does NOT collect, track, log, store, transmit, or sell any personal data, usage metrics, IP addresses, browsing history, or user identifiers. We operate no tracking or analytics servers.

3. 100% Local Storage & Processing

Offline Dictionary: Japanese word lookups, readings, and pitch accents are processed completely offline inside your browser.
Local Storage: Your configuration settings, saved vocabulary, SRS review intervals, and preferences are stored exclusively on your device.

4. Local Anki Integration

If you enable Anki flashcard export, Hakkutsu connects strictly to your local Anki desktop application running on your computer. No card data, vocabulary, or sentence context is ever sent to remote servers or third parties.

5. Single Purpose & Policy Compliance

Hakkutsu complies strictly with Chrome Web Store Developer Program Policies:

User data is never sold or transferred to third parties.
User data is never used for advertising, marketing, or creditworthiness evaluation.
Data access is strictly limited to supporting the extension's single purpose of Japanese language learning.

6. Contact